[Buildroot] [PATCH v1] utils/check-package: warn about utf-8 characters in .mk files

[Yann E. MORIN <yann.morin.1998@free.fr>]

Peter, All,

On 2019-05-08 19:34 +0200, Peter Seiderer spake thusly:
> Signed-off-by: Peter Seiderer <ps.report@gmx.net>
> ---
> Note: is_ascii taken from one of the stackoverflow suggestions ([1])
> 
> [1] https://stackoverflow.com/questions/196345/how-to-check-if-a-string-in-python-is-in-ascii
> ---
>  utils/checkpackagelib/lib.py    | 13 +++++++++++++
>  utils/checkpackagelib/lib_mk.py |  1 +
>  2 files changed, 14 insertions(+)
> 
> diff --git a/utils/checkpackagelib/lib.py b/utils/checkpackagelib/lib.py
> index 6afe1aabce..c65a2ed939 100644
> --- a/utils/checkpackagelib/lib.py
> +++ b/utils/checkpackagelib/lib.py
> @@ -52,3 +52,16 @@ class TrailingSpace(_CheckFunction):
>              return ["{}:{}: line contains trailing whitespace"
>                      .format(self.filename, lineno),
>                      text]
> +
> +class Utf8Characters(_CheckFunction):

This breaks flake8:

    utils/checkpackagelib/lib.py:56:1: E302 expected 2 blank lines, found 1

Regards,
Yann E. MORIN.

> +    def is_ascii(self, s):
> +        try:
> +            return all(ord(c) < 128 for c in s)
> +        except TypeError:
> +            return False
> +
> +    def check_line(self, lineno, text):
> +        if not self.is_ascii(text):
> +            return ["{}:{}: line contains UTF-8 characters"
> +                    .format(self.filename, lineno),
> +                    text]
> diff --git a/utils/checkpackagelib/lib_mk.py b/utils/checkpackagelib/lib_mk.py
> index 00efeb7fb2..9e9a045776 100644
> --- a/utils/checkpackagelib/lib_mk.py
> +++ b/utils/checkpackagelib/lib_mk.py
> @@ -11,6 +11,7 @@ from checkpackagelib.lib import ConsecutiveEmptyLines  # noqa: F401
>  from checkpackagelib.lib import EmptyLastLine          # noqa: F401
>  from checkpackagelib.lib import NewlineAtEof           # noqa: F401
>  from checkpackagelib.lib import TrailingSpace          # noqa: F401
> +from checkpackagelib.lib import Utf8Characters         # noqa: F401
> 
>  # used in more than one check
>  start_conditional = ["ifdef", "ifeq", "ifndef", "ifneq"]
> --
> 2.21.0
> 
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